Water bottle cap



FIG. 1 is a front elevation view of a water bottle cap showing my new design.

FIG. 2 is a rear elevation view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a right side elevation view thereof.

FIG. 6 is a left side elevation view thereof.

FIG. 7 is a right side perspective view thereof.

FIG. 8 is a left side perspective view thereof.

FIG. 9 is a right side perspective view of the water bottle cap of FIG. 1 shown in an open position; and,

FIG. 10 is a left side perspective view thereof.

The broken lines in the drawings depict portions of the water bottle cap that form no part of the claimed design. 

CLAIM The ornamental design for a water bottle cap, as shown and described. 